Roasting and smelting furnace.



PATENTED MAY 26, 19bs.

2 BHEETB-BEEET 1.

J. J. BROWmJ B. ROASTING AND SMELTING FURNACE. APPLICATION FILED AUG/12,19 07.

lurfflIflIlIII/I No. 888,582. PATENT-ED MAY 26, 1908.

' I J. J. BROWN, JR.

ROASTING AND SMBLTING FURNACE.

APPLICATION FILED AUG. 12. 1907- 2 SHEETS-SHEET 3.

INVENTO R and mixed.

- the agitators a 'd said agitators are insuch 'in the novelarrangement,

tion taken on the line 1.1 of F' 2. 1s a sectional view taken on the ine2 ,2 of

- same.

JOSEPHUS J. BROWN, JR, OF TRO.Y,ILLINOIS..

- .FOASTING AND SMELTING FURNACE.

Specification of Letters Patent.

Patented m 26, 1908.

Application filed August 12, 1907. Serial No. 388,170.

- Jr., a citizen of the United States, and residentof Troy, Illinois,have invented certain I new and useful Improvements in Roasting andSmelting Furnaces, of which the following is a specification.

This invention relates to improvements in I roasting and smeltingfurnaces and consists'i construction and combination of parts as will befully herein after described and claimed.

The object of my invention is to provide an attachment to a roasting andsmelting furnace whereby the material within the hearth .box may bemechanically agitated A further object of my invention is to" provide aroasting and sineltingfurnace with a. mechanical means whereby thecontents of the hearth box may be thoroughly mixed without the use ofhand tools, which is the ip'esent process of mixing the ore with the Inthe drawings: Figure 1 is a vertical cross sectional view .of mycomplete inven- Fig. 2

Fig. 1. Fig. 3 is a detail perspective view of the guide rails made useof in connection with my invention. Fig. 4 is adetail top plan view ofthe fork made use of to agitate the ore. Fig. 5 is a perspective view ofthe In the construction of my invention 'I'provide in connection with anordinary roasting and smelting furnace, an-agitating-mechanism 6 whichconsists of an operating shaft 7 having a plurality of cranks 8, thesaid shaft being mounted in bearings 9. suspended from the ceiling ofthe building or framework of.

- said bars are placed division of the housing 21 is to catch anystructure. On the end of said shaft is a ear wheel 10 with which meshesa pinion 11' iiriven by a pulley 12 or any suitable. mechanism by whichsaid shaft may be placed. inrevolution.

To the cranks 8 are attached one end of the agitator bars- 13, theopposite ends ofsaid bars rovided with a socket in which are place andheld agitating. forks 14;. The cranks in the shaft are so arranged thatwhile revolving the agitator'bars are in various locations. By thisarrangement uously being agitated by the movement of 1 positions thatwhile some are entering on one are submerged, some beingwithside andothers again in the act of entering. This operation is accomplished bythe guide rails 15 which extend across the entirefurnace and betweenbraces 16. Between said bars and the division bracesopcrate the agitatorbars 13. This arrangement, in connection with the cranks, is such thatwhile the shaft is being operated, the agitator bars will assume variouspositions, the lowest end or that part to which the fork is attachedwill have a kind of a circular motion permitting said fork to enter onone side of the hearth box, pass material and out on the opposite sidecompletely stirring u the ore and other material within the heart box.

17 indicates the hearth box; 18, a cast iron water iacket; 19, thenozzlesfor the admissi'onof the air blast from the blast entry 20. Thisconstruction of the furnace is not new and I desire to make no'claims onits construction.

On the top of the furnace I place a housing 21 which encircles theentire agitating'mechanism' extending downwardly on the front side to aheight sufficient to permit the insertion of the material into thehearth box over the work shelf 22. The object and purpose the fumes,gases and smoke and permit the sameto be-expelledthrou h the'outlet 23.At one. corner of the heartl i I provide an opening or small depression24 through which the molten ore side, others drawn on the opposite toreceive the same. r

I do not desire to limit myself to the precise construction of operatingmechanism for placing the agitators in o eration;

a cam mechanism or ot er mannerof construction whereby the agitators maybe operated to enter the hearth box at the frontend, pass thro h, thesame and be removed at the rear en" the-smelting process is i In commonpractice the hearth box is mixed by men using crowbars or other tools.slow and clumsy method is dispensed with by providing mechanicalagitators. j Having fully described my invention, I claim is: 1. Adevice of th class described comprising a plurality of agitators incombination in actlon.

What for mixing up the contents while the material within 105 downthrough the ,may flow out into a receptacle placed there I I may use iioprising a' hearth box; a housing .mounted therein, and operating theagitators, substantially as specified.

2. A device of the class described comprising a roasting and smeltingfurnace; a plura ity of agitators mounted above the smelting furnace;forks carried on the end of the agitators to communicate with thematerial Within the hearth of the roasting and smelting furnace formixing vthe material therein, and a means for placing the agitators inoperation, substantially as specified.

3. A roasting and smelting furnacecom:

with a roasting and smelting furnace, said over the heartli box; aplurality of agitators located within the housing;

= with the material within the hearth box for 20 agitating the same, anda means connected to the upperend of the agitators for placing the samein operation to provide a circular movement to the bottom end of theagitators so as to enter, pass through and the material within thehearth, su stantially' as specified.

In testimony whereof,- I have signed my name to this specification, inpresence of two subscribing .WltIlBSSGS.

JOSEPHUS J. BROWN, JR. Witnesses: g

' ALFRED A. EIoKs, WALTER C. STEIN.

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